EP 3676077 A4 20210630 - MOVING POWDER IN A 3D PRINTING SYSTEM
Title (en)
MOVING POWDER IN A 3D PRINTING SYSTEM
Title (de)
BEWEGUNG VON PULVER IN EINEM 3D-DRUCK-SYSTEM
Title (fr)
POUDRE MOBILE DANS UN SYSTÈME D'IMPRESSION 3D
Publication
Application
Priority
US 2017049977 W 20170901
Abstract (en)
[origin: WO2019045757A1] In an example implementation, a powder metering device to move powder in a 3D printing system includes a rotor comprising a central hub and peripheral wheel to rotate about a shaft. Compartments are formed between the hub and the wheel by a plurality of fins that emanate from the hub at first fin ends and affix to the wheel at second fin ends. A top and bottom disk each have a planar surface to lie flush against and to seal, respectively, top and bottom perimeters of each compartment as the compartments rotate about the shaft between a powder receiving position and a powder dispensing position.
IPC 8 full level
B29C 64/329 (2017.01); G01F 11/20 (2006.01)
CPC (source: EP US)
B29C 64/153 (2017.07 - EP US); B29C 64/321 (2017.07 - EP); B29C 64/329 (2017.07 - US); B29C 64/343 (2017.07 - US); B33Y 10/00 (2014.12 - US); B33Y 30/00 (2014.12 - US); B33Y 40/00 (2014.12 - EP US); G01F 11/24 (2013.01 - EP); B29C 31/06 (2013.01 - EP)
Citation (search report)
- [E] WO 2019022751 A1 20190131 - HEWLETT PACKARD DEVELOPMENT CO [US]
- [XYI] US 4747524 A 19880531 - KRAMBROCK WOLFGANG [DE]
- [Y] US 2008047972 A1 20080228 - BARTHOLOMEW JULIE R [US], et al
- [IA] WO 2007139938 A2 20071206 - Z CORP [US], et al
- See references of WO 2019045757A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2019045757 A1 20190307; CN 110914042 A 20200324; EP 3676077 A1 20200708; EP 3676077 A4 20210630; US 11325308 B2 20220510; US 2020198241 A1 20200625
DOCDB simple family (application)
US 2017049977 W 20170901; CN 201780093750 A 20170901; EP 17923737 A 20170901; US 201716603552 A 20170901